Operation options
Proline t-mass T 150
38
Hauser
The keypad lock is switched on and off in the same way:
Switching on the keypad lock
‣
The device is in the measured value display.
Press the + + keys simultaneously.
The message
Keylock on
appears on the display: The keypad lock is switched on.
Switching off the keypad lock
‣
The keypad lock is switched on.
Press the + + keys simultaneously.
The message
Keylock off
appears on the display: The keypad lock is switched off.
8.3
Access to the operating menu via the operating tool
For detailed information about access to the operating menu via operating tool, refer to
the Operating Instructions for the device on the CD-ROM provided
8.3.1
Via HART protocol
This communication interface is present in the following device version:
• Order code for "Output", option
A
: 4-20 mA HART
• Order code for "Output", option
B
: 4-20 mA HART, pulse/frequency/switch output
• Order code for "Output", option
Q
: 4-20 mA HART, pulse/frequency/switch output, status
input